Bay of Pigs. Kennedy didnât wait long for the first confrontation of his presidency. Only weeks after he took office he was told of a secret CIA plan to send an army of Cuban exiles to overthrow Fidel Castro and rid the western hemisphere of its first Communist regime.
An enumeration district, as used by the Bureau of the Census, was an area that could be covered by a single enumerator (census taker) in one census period. Enumeration districts varied in size from several city blocks in densely populated urban areas to an entire county in sparsely populated rural areas. Enumeration district maps show the boundaries and the numbers of the census enumeration districts, which were established to help administer and control data collection.
From Wikipedia, the free encyclopedia. A census tract, census area, census district or meshblock is a geographic region defined for the purpose of taking a census. Usually these coincide with the limits of cities, towns or other administrative areas and several tracts commonly exist within a county.